Reenforced fibrous container and method of manufacture



March 13, 1928.

R. EpHALl.1

REENFORCED FIBRoUs CONTAINER AND METHOD of' MANUFACTURE Filed April 8, 1925 Patented Mar. 13, 1928.

RICHARD E. HALL, F OLEAN, NEW YORK,

ASSIGNOR, BY MESNE ASSIGNMENTS, TO

THE ARVEY MANUFACTURING CO., OF WILMINGTON, DELAWARE, A. CORPORATION OF DELAWARE.

i REEN FORCED FIBROUS CONTAINER AND METHOD 0F MANUFACTURE.

Application filed April s, 1925. serial N6. 21,463.

This invention relates to improvements in reenforced fibrous containers and method of manufacture, and refers more particularly to a recnforced felted fibrous container such as a pail and the like, having reenforcing elements imbedded during formation in the base and side wall to protect the annular edge of the base, as well as the base or sidewalls and to provide a more rigid construction,

The reenforcement may comprise wire mesh incorporated with the fibres during the l felting and forming operation.

This application is in part a modification and in part an improvement of a co-pending application filed by me, Serial No. 744,586, filed October 20th, 1924. rlhe process and apparatus there described, may be utilized to produce the novel product of the present invention7 with such changes in the steps of the process as shall be hereinafter pointed out.

In the drawings:

Fig. l is a side elevational view of a reenforced fibrous container with its base par- .tially broken away, lto expose one type of reenforcement.

Fig. 2 is a cross sectional view taken on line 2-2 of Fig. l.

Fig. v3, Fig. 4 and Fig. 5 are verticalsectional views of containers having the reenorcement imbedded in different parts there- Feferring in detail to the drawings, l designates as a yWhole a seamless, felted fibrous container which, in the present in-` stance, takes the form of a pail having the base 1 side wall 2 and open top. The proccss of making this container is clearly described in said co-pending application, and may be briefly described as follows: The pulp solutionis contained as a vat and a carrier having on its periphery spaced perforated forming molds intermittently rotated to sucessively submerge the molds in the pulp solution. Suction is applied on the interior of the perforated mold subsequent to complete immersion, said suct-ion being maintained until the form and pul felted thereon have emerged from the pu p solution and have been pressed to remove excess water. Subsequent to pressing, the felted, pressed container is removed from the form.

he container is then dried and the mold again -ready for immersion. operatlon is controlled automatically.

The above describes the method of pro-A ducing a felted fibrous container in which there is no reenforcemeiit. rcenforced container of the present invention, the same process and apparatus may be utilized, with the modifications hereinafter pointed out. As shown in F igs.'1 and 2,' a strip of say, one eighth to one-half inch mesh wire, from three to siX inches wide and about thirty-three inches long is first formed into a hoop and placed upon the perforated forming mold above described, subsequent to the removal of the previously felted and pressed container, and before again immersing said perforated forming mold in the To produce the pulp solution. As the perforated formingA mold is submerged in the pulp solution and suctiorris applied, the suction holds the reenforcirg insert in place and the mesh is coarseenough so that a portion of the pulp passes therethrough; thus, very little of the wire insert is exposed on the inside of the finished pail.

It has been ascertained by test that the insertion of this wire reenforcement in a container loaded to its maximum will result in a stronger product, capable of withstanding abuse from rough handling. lit is particularly to be noted that in any of the containers shown in the drawings, the annular edges of the base are protected. These ledges of a pail are the spots exposed to most damage. i

The container shown in Fig. l hasthe reenforcing metallic insert 3 protecting the annular edge, and extending inwardly into the base l for some distance and also projecting upwardly into the side wall 2. The container shown in Fig. 3 has a strip of wire mesh 5 extending entirely through the base and terminating 1n short upward projections at line 4 in the shape of a basket.

The basket shaped insert designated as a whole at 5 is placed exterior of the container forming apparatus in a sli htly larger basket of very finemesh, and pu p from -the press felting tank is manually poured therein to a depth of say, one inch. In about thirty seconds while the container is being pressed (in the container forming apparatus) the water Hows away by graA 'ty leaving abouty The entire one-fourth inch coating of pulp on the inside of the Wire basket 5, which is to be used as an insert. The slightly larger basket of very fine mesh in which the wire basket 5 is placed, is necessary because if the pulp was poured into the basket 5 which is of coarse mesh Without the larger basket of very fine mesh about it, the pulp would go through the coarser mesh. placed on the perforated mold of the apparatus and the outer basket of fine mesh is immediately removed. Immediately subsequent to the submerging of the pail form, a coating of pulp is thrown on the outside of the basket through the use of the suction as explained, completely hiding the wire from vien7 on the inside 0r outside of the pail.

An additional side wall reenforcement G may be inserted in the pail shown in Fig. 3, when found desirable or necessary. In Fig. 4, the Wire mesh 7 extends through base 1, terminating short of the side walls. The cor- -ner is protected by the side Wall reenforcement 8 terminating in the extension 9 imbedded in the base. The construction sho'wn in Fig-5 is similar to that shown in Fig. 1, With the additional side wall reenforcement l0.

It is of course, to be understood that I do not in any Way Wish to limit myself to the Aparticular styles and places ot' insert shown.

This double basket is then I claim as my invention:

1. A seamless fibrous container formed of felted, interloeked libres, having integral base and side Walls, and reenforcing wire mesh imbedded in the base and side walls, said fibres passing through the spaces between the Wire mesh and interlocking therewith and with each other on both sides of the wire mesh to provide a compacted unitary structure.

2. A seamless fibrous container formed of felted, interlocked fibres, having integral base and side walls, and reenforcing Wire mesh imbedded in the base and side walls extending entirely across the corners, said libres passing through the spaces between the wire mesh and interlocking therewith and with each other on both sides of the Wire mesh to provide a compacted unitary structure.

3. A seamless fibrous container formed of felted libres interlocking with each other, having integral base and side walls and reenforcing material imbedded in the base and side walls and extendine entirely across the corners, said libres interlocking with said reenforcing material and with each other on both sides of the reenforcing material to produce a compacted unitary structure possessing the characteristics of having had the reenforeing material incorporated during felting of the fibres.

RICHARD E. HALL. 

